baber/WOPTO huggingface dataset:
Patent GB-2507239-A (GB)
Title: Split gain geometrically biased multimode ring laser gyroscope and method
Inventor: MARTIN GRAHAM J
IPC: G01C19/68
Filed: 1988-10-27
Abstract: A ring laser gyroscope 10 uses a lasingâ€”mode suppression technique to circumvent frequency locking rather than more common frequency biasing methods. The device operates with a fourâ€”mirrored 19-22 nonplanar optical path that allows left and right circularly polarized, onâ€”axis modes to lase in each direction when an included gaseous gain medium is electrically discharged. A uniform axial magnetic field is applied to the gain region in order to produce a splitting of the gain curve into two parts separated in frequency by the cavity free spectral range. By small adjustments to the cavity length the two gain curves are centered about consecutive cavity longitudinal mode sets, each consisting of four modes. Consequently only two modes from each set can lase, thus creating a fourâ€”mode ring laser gyroscope with arbitrarily large lasing mode frequency spacings controlled primarily by the cavity geometry. The device may be configured to operate with a single isotope of neon in the gain medium. A simple magnetic field servo mechanism provides a high degree of immunity to external magnetic field charges.
Patent GB-2210594-A (GB)
Title: Marine propulsion device support assemblies
Inventor: BLAND GERALD F
IPC: B63H/
Filed: 1988-12-05
Abstract: A marine propulsion support assembly comprises a gimbal housing 18 adapted to be fixedly attached to the rear of a boat transom, and a gimbal ring 24 adapted to support a propulsion unit 10 and connected to the gimbal housing for a staring movement about a vertical steering axis 42. A steering link 80 is removably connected to the ring independently of the unit by connecting means 84, 86 accessible from other than inside the boat when the ring is connected to the housing and the housing to the transom to effect disconnection of the link from the ring. <IMAGE>
Patent GB-2223108-A (GB)
Title: Positioning printed sheets prior to processing
Inventor: POLIC GEORGES
IPC: B41J13/00
Filed: 1989-05-05
Abstract: A sheet (15) bearing print (20) is positioned on a board (10) by guides (35, 40) prior to being fed to a processing station eg for cutting and pressing. The guides are initially positioned by an operator 50 that the print (20) on a first sheet is correctly positioned relative to the processing station. A camera (55) viewing two adjacent edges of the sheet is connected via a processor (60) to a circulating unit (65) which stores the position of the printed zone (20) relative to a reference. When subsequent sheets are placed on the board (10), the system compares the position of the print thereon with the stored data and provides corresponding front and side error signals which are fed to motors (75, 80) to adjust the guides (35, 40). 
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Patent GB-2231649-A (GB)
Title: Moving lampshade
Inventor: MANNING PETER ANTHONY
IPC: F21V1/10
Filed: 1989-05-20
Abstract: A two or more part lampshade is disclosed with one part mountable for rotation via an electric rotator unit with respect to the other about a common axis coaxial with a light located inside the two or more parts. <IMAGE>
Patent GB-2223340-A (GB)
Title: Coin sorting and wrapping machine
Inventor: WATANABE KENKICHI
IPC: G07D9/00
Filed: 1989-08-31
Abstract: A machine automatically sorts coins of any one selected diameter from coins of other diameters, stacks the selected diameter coins between an adjustably positioned pair of rotating stacking drums 30, 31 and then wraps a predetermined number of the stacked coins by means of adjustable wrapping rollers 41. Coins fed to a hopper 2 pass to a rotating disc and then to a first sorting passage 4 where counterfeit coins are sensed and rejected before the remaining coins are conveyed by belts to a guide member (13, Figure 1) which is adjustable in position to only allow coins of diameter equal or smaller than the preselected diameter to pass to a second passage 15, larger diameter coins passing via a port to box 51. In passage 15 coins of diameter less than the selected diameter pass through a second port also to box 51 while the selected coins to stacker drums 30. When a predetermined number of sorted coins are stacked on plate 33 the subsequent supply of coins is suspended while the stack is moved to wrapping rollers, the wrapped stack then passed via openable gate 70 and a lifting device to storing box 76. Coins in box 51 may be recovered or may be returned to hopper 2 by conveyors 57 58 for further sorting and wrapping. Counters (8, 20 Figure 1) are provided and together with drum rotation detection means allow for automatic detection of jamming of coins or irregular stacking and transportation of coins, stacked coins being passed without wrapping to a lower hopper 54 via movable gate 72 if such jamming occurs. 
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Patent GB-2223818-A (GB)
Title: Method for tight sealing of a hole and hole arrangement
Inventor: STAUBLI WILLI
IPC: F16L55/136
Filed: 1989-09-11
Abstract: The invention relates to a method for sealing holes, in which an essentially bushing- and/or tube-shaped plug is fitted into the hole and then the wall of the plug is expanded radially along at least one axial segment. In this method, the plug is positively anchored axially in the hole. By this method of producing an axially positive anchoring of the plug in the hole, not only is a tight fit of the plug in the hole achieved, but a mechanical movement of the plug relative to the hole is reliably prevented. 
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Patent GB-2237735-A (GB)
Title: Frame
Inventor: KINKAID ROBERT WILLIAM
IPC: A47C7/62
Filed: 1989-09-19
Abstract: A frame for use in conjunction with a seat comprises means to provide support for a person sitting on the seat and the frame is usable in two positions relative to the seat, in a first of which positions the support means provides lateral restraint for the arms of a person sitting on the seat and in the second of which positions, the support means allows greater freedom of movement for the arms of a person sitting on the seat. The seat which is separate from the frame may be the seat of a lavatory or provided as part of the frame itself, e.g. in the form of a commode. The advantages of the frame are that it is versatile and able to provide support when needed, whilst allowing the necessary freedom of movement. <IMAGE>
Patent GB-2234080-A (GB)
Title: Auto focus camera
Inventor: HIRAI ISAMU
IPC: G03B17/28
Filed: 1990-07-04
Abstract: An auto focus camera having a plurality of object distance measuring zones X, Y, Z and a photographing lens system, comprising a distribution pattern detecting means for detecting a pattern of distribution of objects in the object distance measuring zones in accordance with the object distances of the objects, a focusing means for adjusting an axial position of at least a part of the photographing lens system in the optical axis direction to detect the position of the focal plane, and a focal plane varying means for varying the focal plane. The focusing means and the focal plane varying means are driven in accordance with the distribution pattern of the objects detected by the distribution pattern detecting means so that the focal point of the photographing lens meets the objects. <IMAGE>
Patent GB-2247192-A (GB)
Title: Membrane,e.g for use in an ileostomy bag
Inventor: STEER GRAHAM EMERY
IPC: B01D69/10
Filed: 1990-08-22
Abstract: A method of making a gas-permeable liquid-impermeable membrane includes the steps of perforating a film (10) of linear low density polyethylene (or other suitable polyolefin) in such a way as to yield an array of holes (12) each having an average diameter of approximately 350  mu  (microns), and then solution coating the needled film with a porous polyurethane material (14) having pores of a pore size of 1 to 10  mu . Such a film is advantageously embodied in an ileostomy bag, and is fixed to a bag wall thereof in a location to prevent faecal material contacting the bag filter, by a heat or RF welding operation by which the polyolefin is welded to the bag wall which carries the filter. In use, the polyurethane is exposed to the bag contents, and permits gases to pass but prevents any liquid reaching the filter. <IMAGE>
Patent GB-2237012-A (GB)
Title: Growing medium
Inventor: CLEEVE RICHARD JOHN
IPC: C09K17/32
Filed: 1990-10-01
Abstract: A growing medium comprises comminuted straw, ground lignite, sand and water and acid preservative. Comminuted bark may be included. Preferably the straw is wheat straw passed through a 12mm hammer mill screen and the lignite is ground to less than 5mm particle size.
Patent GB-2248811-A (GB)
Title: Steering lock with means for blocking the ignition switch
Inventor: YANG WEN-HSIEN
IPC: B60R25/022
Filed: 1990-10-15
Abstract: A steering lock comprises a lock body (1) having an extensible member (16) attached thereto for adjusting the range between two locking rods which are connected in parallel through a telescopic tube (22; 25) to form a shackle. The shackle can be extended where clearance is required, and is coupled with a pair of hook-shaped fastening rods (24; 24') which are connected in parallel through another telescopic tube (22; 25) for fastening the steering wheel (31). When the lock barrel of the lock body (1) is rotated to a locking position, the first and second latches inside the lock body (1) respectively lock up the locking bars (2; 2') and the extensible member (16). Two protective cover boards (167) are bilaterally attached to the lock body (1) to protect from insertion of a tool in cutting the second latch and prevent from injury of fingers during locking and unlocking operation. <IMAGE>
Patent GB-2253186-A (GB)
Title: A method of manufacturing a printed blank of card material
Inventor: BURKE ANTHONY
IPC: B41M7/02
Filed: 1991-02-27
Abstract: A printed sheet of card material is treated with a bronze receiving preparatory material. The sheet 3 is then passed to a bronze applying machine 5 where bronze is applied on the prepared areas of the sheet. Excess bronze is removed by burnishing and a sheet which has been roughly burnished is passed to a finishing machine 21 in which finely divided magnesium powder material is introduced at least over the bronzed area of the sheet. The sheet is then burnished to provide a high quality finish.
Patent GB-2239687-A (GB)
Title: Blocking a gas pipe
Inventor: SMITH PETER
IPC: F16L55/11
Filed: 1991-03-06
Abstract: A method is provided for temporarily or permanently blocking the bore of a gas service pipe 5. In the method a resilient ball 6 connected to a releasable tether 7 is forced along the pipe 5 from the gas meter tap end of the pipe 5 by gas pressure, the ball 6 forming a force fit sufficient to resist any attempt to dislodge it by the pressure of gas in the pipe 5. The ball 6 is forced to a position where it is outside the gas consumer's premises 1. The tether 7 may be disconnected from the ball 6 whilst the latter is in the pipe 5. <IMAGE>
Patent GB-2254086-A (GB)
Title: Tendons
Inventor: WALTON JOHN MAWSON
IPC: E04C5/08
Filed: 1991-03-26
Abstract: A structural tendon comprises a plurality (e.g. 2, 4, or 6) of individual strands 1 a-d, ropes, or other elongate load-bearing members, each having a protective jacket 2a-d. The members 1a-d are arranged in a coherent assembly which is substantially torque-balanced under load. Support means (e.g. fluted former 7) supports each member 1a-d over an extended area of its peripheral surface between adjacent members. <IMAGE>
Patent GB-2247130-A (GB)
Title: Velocimeter
Inventor: BARTON JAMES STEPHEN
IPC: G01P5/26
Filed: 1991-07-08
Abstract: A differential laser Doppler velocimeter is based on the use of a modified fibre optic Sagnac interferometer (1, 2). The interferometer phase is dependent not on the target displacement, but on its velocity. The output intensity of the interferometer may be modulated by control means (PC) which controls loop birefringence introducing a phase bias and polarisation offset between counter-propagating beams.
Patent GB-2260819-A (GB)
Title: Gauge for checking dimensions of springs
Inventor: ASPEY BARRY STUART
IPC: G01B7/312
Filed: 1991-10-24
Abstract: A gauge (1) for checking squareness of a spring (10) employs electrical linear transducers (6, 7) for measuring the diameter of the spring (10) at each of its ends. The spring is located vertically in a block (9) and manually rotated. The maximum displacement of each transducer is recorded by means 8 which then computes the difference between the displacements to provide an indication of the amount the spring axis deviates from square. <IMAGE>
Patent GB-2251979-A (GB)
Title: Direct current circuit breaker
Inventor: IKEDA KAZUO
IPC: H01H33/59
Filed: 1991-11-28
Abstract: A direct current circuit breaker Sp has a saturable reactor Ls in series therewith through which a first current flows. In order to suppress arcing when the circuit breaker Sp is opened, a circuit connected in parallel with the series connection of the reactor Ls and circuit breaker Sp supplies, when a switch SW1 is closed, the series connection with a second current that flows in a direction opposite to the first current in superimposition to the first current so as to produce zero crossing points in the first current through the circuit breaker Sp. The saturable reactor Ls is magnetically saturated by the first current therethrough to exhibit a first reactance, and comes out of saturation when the second current flows to exhibit a second reactance greater than the first reactance, so that the saturable reactor acts as a rectifier. <IMAGE>
Patent GB-2262989-A (GB)
Title: An ore prospecting method
Inventor: BUCKLEY FRANK
IPC: G01V11/00
Filed: 1991-12-31
Abstract: A method of ore prospecting in which gravity (10), shallow resistivity (11), deep resistivity (12) and induced polarisation (31) readings are taken along the same traverse. Correlation of the gravity and shallow resistivity readings enables a model of the overburden to be generated (15) and for the gravity readings to be compensated for overburden variations (16). The gravity readings may be further compensated for variations of deeper layers by correlation with compensated deep resistivity readings (17). If there is a deviation in the compensated gravity readings, this indicates that an ore body may be present because noise has been substantially eliminated by compensating in response to the resistivity readings. The nature and distribution of an ore body may be estimated by comparison (32) between estimated and measured induced polarisation readings.
Patent GB-914836-A (GB)
IPC: C25F3/04
Abstract: 914,836. Etching aluminium electrolytically. TELEGRAPH CONDENSER CO. Ltd. (Sprague Electric Co.). April 18, 1961, No. 13925/61. Class 41. Aluminium foil is etched to impart a porous surface suitable for the anodes of electrolytic condensers, by an electrolyte through which passes a pulsed direct current which in each pulse sinks to zero value. For example, using an alkali halide electrolyte, a direct current is applied of average C.D. 1/6 to 2 amps. per sq. inch, the pulse frequency being 30 to 400 per sec. As shown in Fig. 1, the pulse time interval 10 is 20 to 80% of the total cycle 10 and 12, and the coulombs delivered in interval 10 are 90 to nearly 100% of the total supply in one cycle. A rapid rise and fall of current in the interval 12 to a peak 14 is preferred, the current value sinking to zero at the start and finish of the time interval. Circuits are described generating the required waveform of pulsed direct current in which a phase-shifting circuit is applied to 2 thyratrons providing alternating current pulses which then pass through a transformer and rectifying circuit which leads to the etching bath. Pure aluminium foil of purity 99.88% may be used and after etching may be formed with an oxide layer.
Patent GB-2254526-A (GB)
Title: Pager and radiotelephone apparatus
Inventor: FREELAND JOSEPH C
IPC: G08B5/22
Filed: 1991-07-18
Abstract: The present invention encompasses a pager and radiotelephone apparatus (100) having a radio pager section (102) and a cellular radiotelephone section (104) into one unit. The apparatus (100) may automatically receive a plurality of pages while the cellular radiotelephone section (104) is on, communicating a cellular telephone call, or off and unattended. The received pages are stored in the pager section (102) until the apparatus user acknowledges their receipt by a keystroke. The pages are then transferred to the radiotelephone section (104) and stored in non-volatile memory for later use.
Patent GB-2256902-A (GB)
Title: Load bearing guide
Inventor: ISE GENJIRO
IPC: F16C25/06
Filed: 1992-05-12
Abstract: In a linear motion load bearing guide having improved rigidity against vertical, horizontal or momental loads, each of ball rolling surfaces (14, 18) on at least one of the track (12) and the bearing body (10) is defined by a groove having the shape of a Gothic arch in cross section, and consists of two curved surfaces (14a, 14b, 18a, 18b) joined together, and so positioned that a vertical or horizontal load bearing upon the guide may act upon one or the other of the curved surfaces substantially in the direction in which the load bears upon the guide. <IMAGE>
Patent GB-2258929-A (GB)
Title: Temperature control having improved reliability as a result of having plurality of control means and disabling means
Inventor: INAGE OSAMU
IPC: G05B9/02
Filed: 1992-07-23
Abstract: The temperature of e.g. a picture-fixing heat roller 11a of a printer is controlled by a heater 11c and sensed by a thermistor TH which supplies a temperature signal Vt to a CPU 25 and a comparator 26. Normally CPU 25 keeps the temperature at about a first value by controlling a triac 24 via a signal Sch, but if a fault cancels this signal, comparator 26 prevents the temperature from much exceeding a certain higher value and keeps it within a band about this higher value. If it remains in this band for more than a predetermined time, CPU 25 opens a relay 23 via a signal Scr to shut-off the heating until manually re-set. If a fault renders triac 24 permanently conducting, Scr shuts-off the heating when the top of the band is reached. <IMAGE>
Patent GB-2257898-A (GB)
Title: Merchandise display rack
Inventor: MCCRORY JOHN
IPC: A47F5/10
Filed: 1992-07-24
Abstract: A floor (10) slopes forwardly to a low front wall (36). Guide slots (12) extend down the floor (10). Transversely extending guide walls (54) each have a base portion (58) for overlying the floor (10), a downward projection (6) extending beneath the base, and a support wall (56) extending vertically above the base. A respective guide wall (54) may be mounted to the floor (10) at each slot (12), with the projection extending through the slot. Gravity urges the guide wall forwardly down the floor. Thus a row of articles can be engaged between the guide wall (54) and the front wall (36). As articles are removed successively from the front of the display, the guide wall 54 moves forwardly to maintain a neat row. <IMAGE>
Patent GB-2257952-A (GB)
Title: Vehicle airbag
Inventor: KAVANAGH CHRISTOPHER PAUL
IPC: B60R21/2342
Filed: 1992-07-27
Abstract: An inflatable airbag comprises a front part (20) and a rear part (22), or front, rear and side parts joined together by at least one tear seam (24) comprising stitching of a tortuous pattern. The pattern may be in the form of a sine wave or a square wave with combinations of different stitch lengths. <IMAGE>
Patent GB-2268091-A (GB)
Title: Float-actuated overflow
Inventor: YAMAMOTO HIDEO
IPC: B01D17/02
Filed: 1992-08-17
Abstract: An overflow by which the surface layer of a body of liquid is removed comprises an annular float 10 connected by an annular bellows or diaphragm 2 to a fixed plate 1 to form a chamber 5 into which the surface layer flows. Liquid is withdrawn from chamber 5 by a pump through pipe 13 or by gravity through a lower pipe and valve (Fig. 3), at a rate which determines the level in chambers and hence the level of the float. The surface layer may overflow the upper edge 9 of the float or an annular weir carried by the float (Fig. 4). In Figs. 6, 7 the bellows 2 is replaced by a diaphragm. In Figs 8, 9 the assembly is rotated to concentrate the surface layer, of machine oil, towards the centre of a body of cutting liquid. In Fig. 10 a larger device for removing spilt oil from the sea comprises a floating vessel carrying two float assemblies and a submerged propellor to induce a flow of oil towards the vessel. <IMAGE>
Patent GB-2259129-A (GB)
Title: Non plunging cross groove constant velocity joint
Inventor: WARNKE JAMES W
IPC: F16D3/227
Filed: 1992-08-25
Abstract: A cross groove variety of constant velocity universal joint includes an inner race 11 having a plurality of grooves 14 formed in an outer surface 13 thereof and an outer race 15 having a plurality of grooves 18 formed in an inner surface 16 thereof. For each pair of associated inner and outer race grooves 14, 18, the inner race groove 14 is inclined in one direction relative to the rotational axis of the joint, while the outer race groove 18 is inclined in the opposite direction. A ball 20 is disposed in each of the associated inner and outer race grooves 14, 18 for providing a driving connection between the inner and outer races 11, 15. A cage 21 is provided for retaining the balls 20 in the grooves 14, 18. In a first embodiment (Figures 1 and 2) mating spherical surfaces 17, 23 are formed on the inner surface 16 of the outer race 15 and the outer surface of the cage 21. The engagement of these spherical surfaces 15, 23 prevents the centre of the joint from moving axially during use. In a second embodiment (Figure 3), mating spherical surfaces 43, 34 are formed on the inner surface of the cage 41 and the outer surface 33 of the inner race 31 for the same purpose. <IMAGE>
Patent GB-2260792-A (GB)
Title: A control device for remote-controllable actuation
Inventor: GANSER MARTIN
IPC: B60H1/00
Filed: 1992-10-12
Abstract: In a control device for remote actuation of a member 15 in opposition to a spring 7 by means of a cable 4 the control device is also provided with a spring 23 which acts in opposition to the spring 7 and with an equal force to spring 7 irrespective of the position of the control device. A pair of devices may be used to control flaps 15, 16 in a vehicle ventilation system, operated by a cam plate 10. The opposing forces to springs 7 are provided through levers 24, 25 acting on the cam plate. In an alternative embodiment a spring-biassed semi-circular wheel operates a flap through the cable 14. The arrangement reduces the force required to adjust a ventilation flap and permits it to stay in intermediate adjusted positions without a constant force being applied. <IMAGE>
Patent GB-2261513-A (GB)
Title: Membrane osmometer
Inventor: KUEHN ANDREAS
IPC: G01N13/04
Filed: 1992-11-16
Abstract: The membrane osmometer has a tubular solvent chamber of small volume, e.g. 50  mu l, in which is located a coaxial glass capillary membrane 14, provided with connections 22, 24 for passing a sample solution through the capillary. The solvent chamber can be closed off and is connected to a pressure sensor 42. Static or continuous flow measurements can be carried out. On account of the small dimensions the response time is short; the glass membrane is chemically resistant. <IMAGE>
Patent GB-2262820-A (GB)
Title: Operation panel with a display unit for use in washing machines
Inventor: NONOGAKI TAKASHI
IPC: D06F34/32
Filed: 1992-12-17
Abstract: An operation panel (5) for use in a washing machine includes a display (7) unit with a circular liquid crystal display having a central display section for displaying the name of a washing course and circumferential display sections for displaying the names of steps of the washing course and their progress and electrically conductive transparent sheets disposed on the display screen with conductive-sheet portions corresponding to the display sections. The user can select the course and alter the step durations by touching these portions. The display may instead be linear. <IMAGE>